Originally committed as revision 2067 to svn://svn.ffmpeg.org/ffmpeg/trunk
# ra : Real Networks compatible stream. Audio only.
# mpjpeg : Multipart JPEG (works with Netscape without any plugin)
# jpeg : Generate a single JPEG image.
-# asf : ASF compatible stream (Windows Media Player format).
+# asf_stream : ASF compatible streaming (Windows Media Player format).
+# asf : ASF file (not streamed)
# swf : Macromedia flash(tm) compatible stream
# avi : AVI format (open divx video, mpeg audio sound)
# master : special ffmpeg stream used to duplicate a server